Type-writing machine.



N. H. ANDERSON.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 5.1908.

Patented 001;; 5, 1915.

wwsa.

INVENTOB masses.

'srvrrs s' rarss is H i.

NILS H. ANDERSON, OF HARTFORD, CONNECTICUT, ASSlbrNGR,

MENTS, TO THE NOISELESS TYPEWRITER. COMPANY, Oil

NECTICUT, A CORPORATION OF CONNECTICUT.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Application filed June 5,1908. Serial Flo. 43634.5.

To all whom it may concern: Be it known thatl, NiLs H. ANDERSON, a citizen of the United States, residing at Hartford, inthe couiity of Hartford and State of Connecticut, have invented certain new and useful Improvements in Type- Writing Machines, of which the following is a full, clear, andjexact description, such 'as will enable others skilled in the art to which it appertains to make and use the same. i This invention relates to .typewriting machines and more particularly to the means employed for determining the extent of travel of the platen carriage. One object is to provide a new and improved form of marginal stop block.

Another object of the invention is to provide improved means for supporting the margin stop blocks upon the platen carrlage.

A. further object is to improve generally upon the construction of marginal stop mechanism for the platen carriages of typewriting machines. I

' Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordinglyconsists in'the features of construction,combination of ele-,

I tie-rod and a portion of the marginal release lever; Fig. 2 is a rear elevation of the mechanism shown in Fig. 1; Fig. 3 is a side elevation of the mechanism shown in Figs. 1 andiZ, looking from the right hand end of said figures. Fig. 4 is a view in perspective of the margin stop block. Fig. 5 is a similar view of a portion of the'rack for supporting themargin stop blocks; Fig. 6 is a similar view of the locking device for one of the margin stop blocks; and Fig. 7 is a vertical sectional 'view taken through one of the margin stop blocks and associated parts.

Similar reference characters refer to similar parts throughout the several views of the drawing.

Referring now to the drawing, 1 and respectively, indicate the side pieces of t platen carriage, in which are jcurnalcd t shaft 3 of the platen roll 5 indicates the platen which, in the present instance, is constituted by a thin metallic strip havin a plain face for receiving the types (not s own) and a rear curred face to conform to the contour of the platen roll.

The platen is supported upon forward extensions 6 and 7 of-the side members of the platen frame, as clearly shown in Fig. 1 of the drawing. A paper. table 8 is extended between the side members of the platen frame and issupported thereby.

10 denotes an abutment disposed behind the platen carriage, said abutment being comprised by an upstanding portion or horn of a tiered which extends transversely of the machine. The remaining portion of this .tie-rod is not shown in the drawings since the same constitutes no part of the present invention, this structure forming the subect-matter of the United States patent'to W. P. Kidder and C. W. Sponsel, No.

' .79107, dated February 11th, 1908. .F-rbutment 10 is provided with a vertically-disposed slide 11 upon which is mounted a block 12, said block being adapted to slide vertically upon said abutment when the platen carriage is shifted for different case printing. Block 12 is provided with. a slide 18 which receives a downwardlyextending part 14 of a bar 15 fixed upon. the platen can riage and extending longitudinally thereof in parallel relation with the platen roll. Bar 15 is adapted to slide in block 12 when the platen carriage is fed forletter spacing. It will be seen that by reason of this construction the platen carriageis firmly held against recession under the pressure of the printing instrumentalities by the abutment l0 and the associated parts, but is freely shiftable or movable longitudinally with respect to. said abutment. Bari15 is provided, in the present instance, with an upstanding. rack or web'portion 16, and upon the upper end of the teeth 17 of the rack and extending longitudinally thereof is mounted a circular member or rail 18 which forms a support for the margin stop blocks. The margin stop blocks 20, one of which is shown in perspective in Fig. a, are adapted to be posltioned upon bar 158 and have longitudinally extending slots, at 21, which receive the teeth 17 of the rack, whereby the blocks are held against rotation, but are freely slidable upon the support. A locking member 22 is positioned upon the margin stop block and is free to rotate thereon but is held against longitudinal movement by means of a screw 23 which enters a circumferential groove 24 formed upon the body portion of the margin stop block. provided with a slot 25 which receives the teeth 17 of the rack and is also provided with a plurality of teeth 26 which are adapted to engage with teeth of the rack thereby to hold the margin stop block in fixed position with respect thereto. 4

A spring 27 is interposed between the margin stop block and the locking member and connected to those parts at 28 and.30, respectively, said spring operating to hold 'the locking member 1n such position that the teeth thereof will normally be in engagement with those of the rack. A curved finger piece 31 is'mounted upon the locking member and fastened thereto by means of screw By means of this finger piece, the locking member may be rotated to disengage its teeth from those of the rack, whereby the stop block may be slid upon its support and again automatically locked in any desired position thereon by means of the spring 27 which again engages the teeth of the locking member with those of the rack.

Projectingupward from each of the margin stop blocks is a finger 32, the upper end of which extends above the paper table 8 adjacent a scale 33 Thesefingers are provided with zero lines 34 which cooperate with the scale, whereby the margin stop set in. any desired position.

Each of the margin stop blocks is provided with a beveled face, as at 35, which permits the carriage to again pass the end 36 of the margin lever, a portion of which is shown at 37, when the latter has been disengaged from the abutting face 38 thereof to permit of a further movement of the carriage. Knobs 40, are fastened upon either end of bar 18 and prevent the margin stop blocks from being slid ofi the same.

The. manner of manipulating the margin stop blocks, which should be obvious from the above description, lows The margin stop blocks having been .posi'tionedupon the bar 18 and automatisprmg 2? which thereto by holds teeth 26 of the locking member in engagement with the teeth 17 of the rack, said locking members may be rotated'upon the margin blocks to disengage the interlocked teeth. whereby the stop blocks may be moved The locking member 22 is also carried by said table."

blocks may be conveniently is substantially 'as folto any desired position thereon, whereupon spring 27 will again automatically 'rengage the cooperating teeth to lock the margin stop blocks firmly in position. The position of the blocks with respect to therack may be determined by means of the cooperating scale upon the paper table and the pointers which extend upwardly from the margin stop blocks.

table. It will be understood-that'the man gin stop blocks may cooperate with the bell-- ringing mechanism as well as the l ne lockmg device. They may also be utilized as tabulator stops, if desired.

As many changes could be made in the 1 above construction and many apparently "widely different embodiments of this invention could be made without departing from. the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having described my invention what I claim as new and desireto secure by Letters Patent is:

1. In a typewriting machine, the combination with the carriage, of a toothed rack fixed thereon, a bar seated upon the teeth of said rack, a block mounted to. slide upon said bar, and a locking member movably mounted upon said block and having teeth adapted to engage those of the luck.

2. In a typewriting machine, the combination with the carriage, of a pair of contacting bars mounted upon'the carriage and disposed in parallel relation thereon, said bars having intermediately-disposed teeth, a stop block mounted to slide-upon one of said bars, and means mounted upon said stop block and engaging said teeth whereby said stop block may beld'cked in position upon said bar. I

3. In a typewriting machine, the combination with the carriage, of a toothedbar fixed upon the carriage, a circular bar supported upon the teeth of said first-mentioned bar, a stop block mounted to slide uponlsaid circular bar and held against rotation with respect thereto, and a locking member rotatively mounted upon 'said stop block and having teeth for engaging the teeth of said tioned bar, and spring means interposed between said stop block and said locking member whereby said teeth are normally urgedinto engagement.

5. In a typewriting machine, the com-' bination with ,the earriage,'of 'a rack bar suppnrted, upon said carriage, a circular bar located adjacent the teeth of said rack bar and supported thereon, a slotted stop block mounted to slide upon said circular bar, the slot thereof engaging the lateral surfaces ofthe teeth of the rack whereby'said block is held against rotation with respect thereto, a slotted locking member rotatively mounted upon said stop block and having teeth for engaging the teeth of said rack, a spring interposed between said stop block and said locking member which normally urges the teeth of the latter into engagement with the teeth of said rack to lock said'stop block in any desired position along said bar, and a linger piece located upon said locking .mem-

ber adapted to rotate the same to disengage the teeth thereof from those of the rack,

whereby said stop block may be slid along said bar and locked at any desired point in the length thereof.

.6. In a typewriting machine, the combination with a shiftable and longitudinally 'moving platen carriage,'of an abutment lo- 'cated behind the platen carriage, a block mounted to slide upon said abutment, a bar fixed upon the platen carriage and adapted to slide in said block, a rack formed upon said bar, and a stop block-mounted upon said rack and adapted to move longitudinally thereon and having means cooperating with the teeth of said rack whereby the said block may be locked in any desired position thereon.

7. In a typewriting machine, the combination with a shiftable and longitudinally movable platen carriage, of an abutment disposed behind the carriage, a block mounted to slideupon said abutment during the shifting movements of the carriage, a bar fixed upon the carriage and adapted to engage with saidblock and slide"longitudi- ,nally therein when the carriage is moved longitudinally for letter spacing, said bar being provided with an upstanding toothedportion, a circular member supported upon said teeth, a stop block mounted upon said circular member and slidable longitudinally thereof, a locking member rotatively mounted upon said stop block and having teeth adapted to engage the teeth of said upstanding portion, and a spring interposed between said stop block and said locking member adapted to hold said teeth in engagement, the teeth of said locking member being adapted when the latter is rotated to be disengaged from the teeth of said upstanding portion, whereby said stop block may be moved to any desired position upon said circular member and again locked in position thereon.

8. In a typewriting machine, the com-- bination with a shiftable and longitudinally movable platen carriage, of an abutment disposed behind the carriage and adapted to hold the same against recession under pressure of the, printing instrumentalities, a block mounted to slide upon said abutment during the shifting movements of the carriage, a bar fixed upon the carriage and having a. depending portion which engages with said block and slides therein when the carriage is moved longitudinally for letter spacin-g, said bar having an upstanding rack portion, a circular member supported upon the teeth of said rack member, a stop block mounted upon said circular member and having a slot for receiving the teeth of the said stop block, but held against longitudinal v movement with respect thereto, said locking member being provided with teeth adjacent the slot thereof, a spring interposed between said locking member and said stop block adapted to hold. the teeth of the former in engagement with the teeth of said rack portion to lock said stop block against movement, and a finger piece mounted upon said locking member by means of which the same may berotated to disengage the teeth thereof fromthose of the rack and for moving the same and the stop block longitudinally of its support. 4

9. In a. t vpewriting machine, the combination with the platen carriage, of a rack bar fixed thereon, a barsupported upon said rack bar adjacent the upper ends of the teeth thereof, a plurality of margin stop blocks mounted upon said last-mentioned bar and adapted to slide thereon, said stop blocks being provided with slots which engage the lateralsurfaces of the teeth of said rack, each of said stop blocks being provided with a circumferential groove. a lopking member rotative'ly mountedupon each of said stop blocks and having teeth adapted to engage the teeth of the rack to lock the stop block in anydesired position upon its support, a

spring interposed between each of said stop blocks and the locking member thereof,

whereby said teeth are normally held in en-.

gag'ement, afinger piece located upon each of said locking members whereby the teeth thereof may .be disengaged from the teeth of the rack and said "stop block moved to any nation with the carriage, of a paper table mounted upon said d'arriage having a scale bar located along the upper edge thereof, a rack, a movable margin stop, and a slide along which said margin'stop isadapted to move comprising a round-headed rail resting on a-perforated web, said margin stop having means cooperating with said scale to indicate its position upon said slide.

11. In a typewritingmachine, the combination with a carriage, of a paper table mounted thereon having a scale along its upper edge, a rotatable margin stop block, a slide mounted beneath said paper table along which said margin stop block slides and about which it may rotate, comprising a round-headed rail resting on afperforateal web, means carried by said margin block to engage the perforations in said web and 'lock the same in fixed relation therewith, and anupwardly curved arm on said margin block coaeting. with said scale to indicate the position 'of said block upon said slide.

12. In a typewriting machine, the combina ion with a carriage, a rail mounted onsaid carriage having a perforated web, and margin stop devices adapted to slide along said rail and engage said perforations when it is desired to :lock the devices against movement.

13. In a typewriting machine, the combination with a carriage, margin stop blocks carried thereby, of a slide for's'aid margin I stop blocks comprising a bar resting on a perforated rail, said stop blocks being movable onsaid bar and having means for engaging the perforations to hold the same in adjusted position.

14. ln-a typewriting i'nac-hine. the combi- 'a perforatedweb,-said margin stop blocksv along said rail.

nwaeae nation with a' carriage and margin stop blocks carried thereby, of a slide for said margln stop blocks comprlsing a rail having having a member longitudinally-movable on said slide, and a second member rotatably mounted on said first member adapted to engage the perforations in the saidweb and lock the said block in fixed relation therewith.

15. In a typewriting machine, the combination with a carriage, of a toothed bar.

mounted upon said carriage, a rail supported upon the teeth of saidv bar,'a stop block mounted to slide upon said rail, and a locking member mounted upon said' stop block adapted to be moved into and out of engagement with said rack bar whereby said block may be moved along said rail and locked at any desired point in the length thereof.

16. In a typewriting machine, the combination with a carriage, a margin stop block carried thereby; of a slide for said margin stop block comprising a bar resting on a perforated web, said stop block being movable on said bar, means associated with said block for engaging the perforations to hold the same in adjusted position, andmeans associated with said block whereby the same may be grasped by the operator. and moved 17-. In a typewriting machine, the combination with a-earriage a'nda margin stop block carried thereby, of a slide for said margin stop block comprising a rail anda rack associated therewith, said margin stop block having. a member longitudinally movable on said slide, a second memberrotatably mounted on said first member adapted to engage said rack and lock the said block in fixed relation therewith, and means assoeiated with said second member-whereby the same may be rotated into and out of locking position.

' In testimony whereof I affix my signature, in the oresence'of two witnesses.

I NILS H. ANDERSON. Witnesses: I

C. H. IVILsoN, H. M. SEAMaNs. 

